On internal higher order mode coupling in slot arrays

Author

Rengarajan, Sembiam R. ; Nardi, Danirel D.

Author_Institution

Dept. of Electr. & Comput. Eng., California State Univ., Northridge, CA, USA

Volume

39

Issue

5

fYear

1991

fDate

5/1/1991 12:00:00 AM

Firstpage

694

Lastpage

698

Abstract

Internal higher-order mode coupling between adjacent longitudinal radiating slots cut in a broad wall of a rectangular waveguide is examined rigorously. Method-of-moments solutions to pertinent coupled integral equations are investigated. Higher-order mode coupling effects on the amplitude and phase of the aperture electric field are studied as a function of waveguide and slot parameters. It is shown that higher-order mode coupling effects are accounted for, to a substantial extent in standard-height waveguides and almost completely in reduced-height waveguides, by including the TE₂₀ mode coupling in the analysis

Keywords

microwave antenna arrays; rectangular waveguides; waveguide antennas; TE₂₀ mode coupling; aperture electric field; integral equations; internal higher order mode coupling; longitudinal radiating slots; method of moments; rectangular waveguide; slot antennas; Acoustic waveguides; Aircraft; Apertures; Computer errors; Integral equations; Moment methods; Mutual coupling; Planar waveguides; Rectangular waveguides; Tellurium;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.81506

Filename

81506